Re: [WireGuard] Seeking Ubuntu PPA Maintainer

[Egbert Verhage <egbert@eggiecode.org>]

Hey Jason,

The kernel module worked for my. ([1020751.674357] AVX2 disabler loaded:
1 -> 0)
Going to update the PPA to remove my disable of AVX2.

The problem is that the hosting company hides the cpuuid, but from the
call with the sysadmin it is a XEON E5-2??? v3.

Greetz,
Egbert


On 2016-11-16 02:31, Jason A. Donenfeld wrote:
> Hey Egbert,
>
> On Wed, Nov 16, 2016 at 1:34 AM, Egbert Verhage <egbert@eggiecode.org> wrote:
>> I mailed/called with one of the sys admins and discussed with him about the
>> problem in the AVX2 extention.
>> I think I'm going to mail/call the hosting company again.
> It seems like the crux of the issue is that if they disable AVX2
> instructions, they need to make this known in the CPUID. Otherwise the
> operating system will assume it's there when it isn't.
>
>> Can give you a vps if you want to. Just 3 euro the month.
> See the attached tarball. Compile the kernel module in there and load
> it BEFORE WireGuard. You might have to manually unload wireguard for
> this to work: "rmmod wireguard && insmod ./avx2disabler.ko && modprobe
> wireguard", for example. It should disable avx2 inside the kernel,
> solving the issue.
>
> Jason